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Re: VGA Capture Thread

I am running Datapath VisionAV capture with the VCS software and I just can't get proper colors. Everything is too dark. For instance in this screenshot the white color is rgb(239, 239, 239) instead of (255, 255, 255) and the blue widow bar is (0, 0, 112) instead of (0, 0, 128). With the original …

Re: Voodoo 3 Undervolting/Undercloocking

With a K6 300 (bottlenecking), I've seen temps reduced by up to 4 C load and idle by downclocking from 143 to 100 MHz, with 0-5% loss in performance up to 800 x 600 (tested in Quake 3, Need for Speed 5, 3DMark 99). So not a big reduction in temps, but also no clear benefit in running the card full …

Re: Voodoo 3 Undervolting/Undercloocking

With a K6 300 (bottlenecking), I've seen temps reduced by up to 4 C load and idle by downclocking from 143 to 100 MHz, with 0-5% loss in performance up to 800 x 600 (tested in Quake 3, Need for Speed 5, 3DMark 99). So not a big reduction in temps, but also no clear benefit in running the card full …

Re: VGA Capture Thread

imi wrote on 2022-02-07, 09:58: if this is a common issue on datapath cards I'm surprised I haven't read anything about it yet? I've recommended the VisionRGB-PRO for lower-res capture, but you need to work around the hardware and OS requirements. In any case, I don't think people use 640 x 480 …

Re: VGA Capture Thread

Anyone ever encountered this and knows a solution? I've seen the same with a VisionRGB-E1S. I don't think the VisionRGB-PRO2 had the problem, but I can't remember for sure. It should be possible to fine-tune the positioning via the video card's control panel (if supported - Matrox at least should) …

Re: VGA Capture Thread

(Fortunately, like Datapath, Magewell has their own hardware API. Might have to take up programming just to code up a better interface that lets me make adjustments in increments of 1 and type in correct values directly.) The Magewell can probably be supported in VCS just by implementing the …

Re: Professional capture cards video lag?

mothergoose729 wrote on 2021-03-26, 03:56: I don't know anything about the visionRGB. Can you link me to something I can read up on? It's a range of enterprise capture cards for video walls, medical imaging, whatever that gets cheap ebay dumps from presumably big prior users.

Re: Professional capture cards video lag?

Wouldn't it be easier to just split the VGA signal with a cable? If you are after a way to play games on LCD monitors than a dedicated scaler is going to work a lot better. Capture cards aren't designed for playing games. You can run into lots of different kinds of issues. You'll run into issues …

Re: Professional capture cards video lag?

I tested with a VisionRGB-PRO using a PS2 keyboard via a switch box, recording a smartphone 960 FPS video of both the keyboard's caps lock light and an OS indicator displayed on a 60 Hz non-gaming monitor. Took about 30-40 ms from the caps lock light to a VisionRGB-captured image of Win 98's WordPad …

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